300 
also often kept longer before being used than milk. The pasteuriza- 
tion, to be effective, should be a thorough one, and the cream pasteur- 
ized should be held at the pasteurizing temperature for not less than 
twenty or twenty-five minutes to insure completion. The ideal cream, 
of course, is that derived from ideal milk, handled in an ideal man- 
ner and used in the shortest possible time in its natural state. Since 
in the present condition of affairs, however, it is not possible to secure 
such cream, thorough pasteurization under competent supervision is 
highly desirable. 
Table III. — Chemical , microscopical, and bacteriological examinations of cream from 
January 30, 1907, to June 12, 1907. 
Date. 
Serial 
No. 
Fat. 
(_) i 8 color - 
per cent. 
Bacterial 
count 
per cc. 
Streptococ- 
cus. 
Gas produc- 
tion. 
Leuco- 
cytes. 
1907. 
Per ct. 
Mar. 27 
M 4594 
18.76 
+ 
145,000 
No 
No 
90,600 
M 4824 
22.27 
+ ! 
15,250,000 
do 
do 
121,900 
May 3 
M 4829 
23. 16 
+ 
1,050,000 
do. . 
Bubble. 
223,100 
Feb. 27 
M 4447 
16.60 
57,600 
Few j 
1 per cent 
1,672,300 
Mar. 1 
M 4452 
18.68 
+ 
294,330 
do 
No 
1,057,200 
Mar. 12 
M 4511 
17.67 
395,000 
do 
...do. 
703,300 
May 27 
M 4952 
18.88 
52,500,000 
No 
10 per cent . . 
486,200 
Mar. 1 ; 
M 4454 
22.00 
+ ; 
1,175,000 
Few 
No 
1,811,500 
Apr. 10 
M 4680 
13. 10 
1,987,500 
do 
1 per cent 
386, 300 
Mar. 2 
M 4459 
15. 07 
- 
458,330 
Few 
No 
21,900 
May 27 
M 4956 
21.38 
+ 
29,500,000 
Many 
10 per cent . . 
22,600 
Mar. 7 
M 4480 
30.00 
2,833,000 
do 
2 per cent... 
78,600 
Mar. 11 
M 4495 
21.00 
+ 
862,500 
do 
12 per cent. . 
33,300 
Apr. 2 
M 4634 
21.82 
113,000 
No .. 
3 per cent 
16,000 
Apr. 22 
M 4766 
18.32 
+ 
12^500,000 
do 
5 per cent 
57, 900 
Feb. 20 
a M 4391 
42.43 
1,610,000 
Few 
do 
( b ) 
May 22 
M 4312 
27. 77 
78,300 
No ' 
No 
22,600 
Mar. 14 
M 4520 
19. 19 
+ 
161,000 
do 
do. 
46,600 
Mar. 25 
M 4579 
18. 77 
■ 
323,750 
do 
do 
35,300 
June 12 
B. C. 31 
20.55 
+ ! 
29,500,000 
Few 
2 per cent . . . 
59,300 
May 27 
M 4959 
16. 31 
6,825,000 
No 
10 per cent. . 
60.600 
June 11 
B. C. 23 
24. 92 
+ 
15,500,000 
do 
2 per cent... 
79,300 
Feb. 26 
M 4434 
20. 55 
+ 
192,500 
do 
No 
258,900 
Mar. 2 
M 4462 
20.82 
271,660 
Few 
5 per cent 
228,400 
Mar. 8 
M 4484 
19. 13 
+ 
200,000 
.do 
No 
77,200 
Mar. 23 
M 4565 
18.56 
+ 
8, 375, 000 
do 
do 
57,300 
Jan. 30 
M 4328 
12.60 
— Colored 
171,830 
Not det 
337,500 
Feb. 1 
M 4330 
12.90 
— do 
938,300 
Few 
do 
465,400 
Feb. 4 
M 4339 
12.60 
— do 
354,800 
do 
do 
403,000 
Mar. 20 
M 4548 
22. 31 
136,000 
do 
No 
978, 300 
June 11 
B. C. 19 
21.66 
+ 
155, 000, 000 
Many 
10 per cent . . 
1, 226, 000 
Mar. 6 
M 4471 
22.75 
+ 
245,830 
Few.. 
...do.. .. 
113, 200 
Do... 
M 4472 
21. 95 
+ 
288,300 
do 
No 
111,900 
Apr. 19 
M 4747 
15.42 
99,000 
No 
Bubble 
43,300 
May 25 
M 4951 
20. 08 
25,600 
do 
15 per cent.. 
56,600 
Feb. 18 
M 4381 
17.58 
8, 050, 000 
do 
; No 
159,100 
Feb. 20 
1 M 4387 
16.81 
• . 
296,660 
Few 
do 
318,300 
a Double cream excluded from average. & Cloudy, impossible to count. 
